When filming began on this movie in late summer of 1965, Tommy Kirk was on probation with Walt Disney Studios due to an arrest on a marijuana possession charge from Christmas Eve of 1964. Although later cleared by the District Attorney's office, he was immediately replaced after the arrest by Michael Anderson Jr. for the role of the youngest son in the John Wayne movie, The Sons of Katie Elder (1965), for which principal shooting was to begin January 4, 1965. Newspapers of March 20, 1965, reported that Kirk had signed a five-year contract with American-International Pictures and on June 3, although details were not given, newspapers reports about Kirk stated that "His recent bout with the police in a mid-west city didn't do his clean cut kid image any good and his career with the Disney films seems over."
Famously skewered by Joel and the bots in Season 3, Episode 4 of Mystery Science Theater 3000.
The Cascades perform an early song written by Ray Davies, of The Kinks.
When the movie was filmed in August to September 1965, the Cascades, the featured band, were three years past their only hit, "Rhythm of the Rain." By the film's release, original members were leaving the group.
Tommy Kirk was signed to a four-picture contract with Executive Pictures Corporation. He didn't make any films after this one.